Medium 5.5Published Apr 24, 2026

CVE-2026-31604wifi: rtw88: fix device leak on probe failure

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix device leak on probe failure Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. This driver takes a reference to the USB device during probe but does not to release it on all probe errors (e.g. when descriptor parsing fails). Drop the redundant device reference to fix the leak, reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of further memory leaks.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jun 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before f632987306bce9242cdfcf911ee0b2c9455e05a3; from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before a4f4371d194dfa5473cc961f86194084b1b13a69; from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before 89a9c1bc7d797120bcc290864e0cb10a440a677f; from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before af7307e96dad00bcc2675dac650d8558a52f2c6f; from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before 25a827b7e1d5747a255bdc757f1d3e9e1e8a4e2a; from a82dfd33d1237f6c0fb8a7077022189d1fc7ec98 before bbb15e71156cd9f5e1869eee7207a06ea8e96c39	CNA record
linux linux_kernel linux:linux_kernel	from 6.2 before 6.6.136; from 6.7 before 6.12.83; from 6.13 before 6.18.24; from 6.19 before 6.19.14; from 7.0 before 7.0.1	NVD

References

References

https://git.kernel.org/stable/c/f632987306bce9242cdfcf911ee0b2c9455e05a3	patch
https://git.kernel.org/stable/c/a4f4371d194dfa5473cc961f86194084b1b13a69	patch
https://git.kernel.org/stable/c/89a9c1bc7d797120bcc290864e0cb10a440a677f	patch
https://git.kernel.org/stable/c/af7307e96dad00bcc2675dac650d8558a52f2c6f	patch
https://git.kernel.org/stable/c/25a827b7e1d5747a255bdc757f1d3e9e1e8a4e2a	patch
https://git.kernel.org/stable/c/bbb15e71156cd9f5e1869eee7207a06ea8e96c39	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.